remove some preprocessor macro related to podofo : we already require podofo >= 0.7.0

git-svn-id: file:///svn/Scribus/trunk/Scribus@19669 11d20701-8431-0410-a711-e3c959e3b870
#12827: crash on pdf export

git-svn-id: file:///svn/Scribus/trunk/Scribus@19671 11d20701-8431-0410-a711-e3c959e3b870
#12856: Fix non translated UI string

git-svn-id: file:///svn/Scribus/trunk/Scribus@19673 11d20701-8431-0410-a711-e3c959e3b870